MRCOOL 3-Zone Mini Split Systems

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Up to 3 Zone Systems

Up to 3 Zone Systems

Up to 3 Zone Systems

UP TO 24 SEER

UP TO 24 SEER

UP TO 24 SEER

-13°F HEAT PERFORMANCE

-13°F HEAT PERFORMANCE

-13°F HEAT PERFORMANCE

MRCOOL Product MRCOOL Product

MRCOOL 3-zone mini split systems are energy-efficient heat pumps built to provide reliable heating and cooling for three individual rooms or zones, ensuring tailored comfort in multiple spaces. Equipped with advanced WiFi connectivity, quiet operation, and precise temperature control, these systems offer versatile, year-round climate solutions for enhanced home comfort.

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MRCOOL Logo MRCOOL Logo

Up to 3 Zone Systems

Up to 3 Zone Systems

Up to 3 Zone Systems

UP TO 24 SEER

UP TO 24 SEER

UP TO 24 SEER

-13°F HEAT PERFORMANCE

-13°F HEAT PERFORMANCE

-13°F HEAT PERFORMANCE

MRCOOL Product MRCOOL Product
Uses for MRCOOL 3-Zone Mini Splits:
  • 3 bedrooms
  • Large home additions
  • Workshops, outbuildings, or sheds
  • Guest rooms or spare bedrooms
  • Basements and exercise rooms
  • Living room, kitchen, and dining room

Benefits of a MRCOOL 3-Zone Mini Split

Is a MRCOOL 3-zone mini split right for you? What are some of the biggest benefits of these systems?:

  • Enhanced energy efficiency
  • Easy ductless installation with simple hand tools
  • Highly efficient inverter compressor with high SEER ratings
  • Designed for continuous operation to provide consistent comfort
  • Controls moisture and prevents mold growth
  • Wi-Fi connectivity and smartphone / smart home hub compatible
  • Temperature differential feature reduces energy consumption
  • User friendly from installation to daily operation
  • Compact and aesthetic design

MRCOOL 3-Zone Product Features:

  • Multi-Zone: Multi-zone technology give you flexibility and control whenever and wherever you want it.
  • Superior Efficiency: Up to 23 SEER efficiency means you save money heating and cooling every single month.
  • Smartphone App: Control your MRCOOL Olympus® Multi-zone system anywhere with your Apple if Android smart device and an internet connection.
  • Quiet Running: Interior air comfort is wonderful, but not if a loud compressor keeps you up at night. MRCOOL Olympus® runs efficiently, effectively, and quietly all at the same time.
  • Follow Me®: Keep the remote close by, and MRCOOL will track the air temperature around you to ensure you receive maximum comfort.
  • Leakage Detection: When the MRCOOL detects low coolant an alarm will sound to alert you to the problem. This will prevent damage to the compressor while you maintain high air comfort.
  • Low Ambient Cooling: This feature makes the MRCOOL the ideal system for server rooms, greenhouses, and any other application that requires cooling all year.
  • Auto Restart: Power outage? Don't worry, the MRCOOL auto restart will have the unit running again in no time at all.
  • Timer Function: You can set MRCOOL Olympus® to start or stop operation automatically according to your personalized schedule, all while saving energy and time.
  • Auto Swing: You can set airflow to personal preference, or allow MRCOOL Olympus® to automatically distribute air evenly throughout the space.
  • Sleep Mode: We made Sleep Mode easy to program to save money, and let you sleep a little easier.
  • Louver Position Memory: Horizontal louver will automatically move to the same position as you set the last time the unit was turned on.
  • Digital Assistant Ready: The new MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.
  • Auto Swing: You can set airflow to personal preference, or allow MRCOOL Olympus® to automatically distribute air evenly throughout the space.
  • Gold Fin® Condenser: Live on the coast? Don't worry, our MRCOOL condensers is built to resist long term corrosion.
*Please Note: Depending on the system you purchase, features may change, increase, or decrease in availability*
*Warranty may also be subject to change depending on the system you purchase*

No Two Rooms Are The Same...

Even if you have two rooms that are the same square footage, the room may need a larger or smaller BTU capability. Factors such as location, humidity, insulation, windows, ceiling height, or even room hotspots are just some of the things that can change the efficiency of your mini-split system and should be taken into consideration before purchasing.

Luckily with MRCOOL 3-Zone Mini-Splits, any room can be tailored to fit your lifestyle and needs.

Start By Selecting Zone 3:
  • 9K BTU for 250 - 400sq ft (typically a small shed, or single car garage)
  • 12K BTU for 400 - 600sq ft (typically a sunroom, or standard garage)
  • 15/18K BTU for 600 - 1,000sq ft (typically a studio apartment)
  • 24K BTU for 1,000 - 1,500sq ft (typically an average barn)

MRCOOL's Quick-Connect® Pre-Charged Line Set

Kink resistant for easier bending during installation

100% accurately pre-charged R-401A refrigerant

Standard lengths of 16 ft and 25ft can be combined using optional DIY® Couplers for longer lengths

Simple to Use, Leak Proof, and Screw-on Quick Connect Valves do not require vacuuming

Quicker Installation than Conventional Line Sets

Strong UV protection insulation provides extra protection against sun damage, weather erosion, or destruction from animals or insects

Now Included: The DIYPRO® cable - a stronger electrical conduit that protects your cables from the weather and from gardening tools

*Please Note* Not all MRCOOL 3-zones are DIY. Non-DIY systems will not come with a pre-charged lineset, and will need an HVAC Technician to complete installment.

Room to Room Control

  • Single Zone Mini Split - One air handler, and one condenser.
  • 2 Room/Zone Mini Split - Two  air handlers, and one condenser. 
  • 3 Room/Zone Mini Split - Three  air handlers, and one condenser. 
  • 4 Room/Zone Mini Split – Four  air handlers, and one condenser. 
  • 5 Room/Zone Mini Split – Five  air handlers, and one condenser. 
  • Other Page Links

  • MRCOOL Home - MRCOOL Main Brand Page
  • MRCOOL Multi Zone Home Pages - MRCOOL Multi Zone Pages
  • MRCOOL DIY Home - MRCOOL DIY Mini Split Pages
  • Central Mini Split Systems - One air inverter and one condenser.
  • MRCOOL Accessories - Anything you might need for installation & aesthetics
  • How does MRCOOL stand up to the competition?

    MRCOOL stands out for its innovative DIY installation design, that allows homeowners to set up their mini splits with ease and without the hassle of professional help, saving both time and money. In addition to their high energy efficiency ratings and smart technology, MRCOOL systems are the smart choice for any home.

    Frequently Asked Questions

    A MRCOOL 3-zone mini split system is a highly efficient, ductless heating and cooling solution that allows precise temperature control in three rooms or zones. It consists of an outdoor condenser unit and three indoor air handler units, together they provide flexible and energy-efficient climate control for your home or office.

    Benefits of a MRCOOL 3-zone mini split include high energy efficiency, precise temperature control, quiet operation, and the ability to heat or cool individual rooms. They are also easier to install compared to traditional HVAC systems, making them a versatile option for various applications.

    MRCOOL 3-Zones can be anything from a garage to a bedroom, finished basement or living room where ductwork is not needed. With a variety of air handler options like: wall mounted, ceiling cassette, concealed ducts, and floor mounts there is a mini split for everyone.

    No. The MRCOOL 3-Zone Olympus Series systems are NOT DIY systems. They will need to have final installation and the refrigerant charged by a registered HVAC Technician.

    The larger the room, the larger the BTU need. Our customer service experts are also HVAC experts, and one of them can help you determine the best size for your application, plus help you consider the options for the air handler, and how it delivers air into the room. For more information, you can also check our sizing guide.

    The max length depends on the unit that is being installed, although typically:

    The Max lineset on a MRCOOL 3-Zone system is going to be 172ft

    We do still suggest checking your systems submittal located in Product Specifications Resources to verify this information for your specific system

    Check out our MRCOOL home page here.
    Check out our Multi-Zone systems here.
    Check out our DIY systems here.
    Check out our Central Heat Pump systems here.

    Check out our article about Expanding the life of your mini split system here.

    Or you can check out our article about prepping your HVAC system for cold weather here.

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